Ke hoʻokokoke nei nā mea noiʻi ma ke Kulanui o Hiroshima i ka wehe ʻana i nā kaʻina molekala ma hope o ka hoʻonele ʻana o ka wai i nā mea kanu i ka oxygen. E kōkua ana kēia i ka hoʻokumu ʻana i nā mea kanu hiki ke pale i ka wai. ʻO ka puka komo ʻo Phys.org.
Wahi a ka World Bank, ʻo ka waikahe ka pilikia o ka honua e hoʻoweliweli i nā ola a me nā waiwai o nā piliona kānaka. ʻOi aku ka nui o nā poʻe i ka pōloli ma muli o ke kahe ʻana: hiki i ka wai ke kahe i nā mea kanu. Ua kokoke loa nā mea noiʻi i ka ʻike nā kaʻina molekalake kumu e hoʻonele ai nā waikahe i nā mea kanu i ka oxygen. E kōkua ana kēia i ka hana ʻana i nā mea kanu ʻoi aku ka ikaika.
Me ke kōkuaʻana o hōʻike ʻōlelo hoʻohālikelike, e pili ana i ka hōʻiliʻili hou ʻana i ka ʻikepili mai nā haʻawina ʻē aʻe ma ke ʻano laulā, ua loaʻa i kahi hui mai ke kula puka kula o Integrated Life Science ma ke Kulanui o Hiroshima i kekahi mau mea maʻamau. genes a me nā hana pili i ka laiki (Oryza sativa) a me Arabidopsis (Arabidopsis thaliana). Ua hoʻopuka nā kānaka ʻepekema i kā lākou hopena noiʻi ma ka puke pai ola.
"ʻO Hypoxia kahi koʻikoʻi abiotic no nā mea kanu, pinepine ʻia e ka wai kahe," wahi a Keita Tamura, ka mea kākau noiʻi, e pili ana i ka nele o ka oxygen ma muli o ka oversaturation. "ʻOiai ua nui ka noiʻi i hana ʻia i ka wā ma mua, ua manaʻo mākou ua huna ʻia nā mea hana olaola Hiki ke ʻike ʻia ma ka nānā ʻana i nā noiʻi he nui me ka hoʻohana ʻana i ka meta-analysis o ka ʻikepili i loaʻa i ka lehulehu.
Ua noʻonoʻo ka hui i ka laiki a me ka ʻuala, no ka mea, ua aʻo nui ʻia nā genetics o nā ʻano ʻelua. Wahi a Tamura, ua manaʻo ʻia ka laiki kekahi o nā mea kanu koʻikoʻi o ka honua, ʻo ia ka mea nui meaʻai meaʻai no ka ʻehā piliona kānaka, e like me ka International Agricultural Research Advisory Group, no laila e hoʻomaopopo ana pehea e pale ai i kahi mea kanu mai ka pane ʻana i hypoxia, mea koʻikoʻi.
Ua ʻike ka poʻe noiʻi he 29 mau pālua o ka RNA sequencing data no Arabidopsis a me 26 pairs no ka laiki ma nā kūlana maʻamau a me ka nele o ka oxygen mai nā ʻikepili i loaʻa. Wahi a Polofesa Hidemasa Bono, ʻo ka RNA sequencing e pili ana i ka wehewehe ʻana i ka hoʻolālā genetic o ke kumuhana ma kahi i hāʻawi ʻia, ʻo ia ka mea hiki ke hoʻohana ʻia ka ʻikepili e aʻo ai i nā genes i hoʻololi ai.
"Ma ka nānā ʻana i ka ʻikepili sequencing RNA, ua ʻike mākou i ka 40 a me 19 upregulated a downregulated genes i nā ʻano ʻelua," wahi a Bono. "I waena o lākou, ʻike ʻia kekahi mau mea transcription WRKY a me ka cinnamate-4-hydroxylase, nona ka hana i ka pane ʻana i ka hypoxia i ʻike ʻole ʻia, ma ka Arabidopsis a me ka raiki."
Wahi a Bono, ʻo kēia hoʻoponopono maʻamau e ʻoi aku ka ikaika o kēia mau mīkini molekala inā nele ka oxygen, e hōʻike ana i kā lākou kuleana mechanistic kikoʻī no ka pane ʻana o nā mea kanu.
Ua hoʻohālikelike ʻo Bono lāua ʻo Tamura i kā lāua mau hopena me kahi meta-analysis like o ka hypoxia i loko o nā pūnaewele kanaka a me nā ʻāpana kiko. Ua ʻike lākou ʻelua o nā genes maʻamau i hoʻāla ʻia i laiki a ua hoʻopau ʻia nā Arabidopsis i ko lākou mau hoa kanaka.
"Ke hōʻike nei kā mākou meta-analysis i nā ʻano molekala like ʻole no ka hypoxia i nā mea kanu a me nā holoholona," wahi a Bono. "ʻO nā genes moho i ʻike ʻia ma kēia noiʻi e manaʻo ʻia e hoʻomālamalama i nā ʻano molekala hou o ka pane ʻana o nā mea kanu i ka hypoxia. ʻO ka hope loa, hoʻolālā mākou e hoʻopunipuni i kekahi o nā genes moho me ka ʻenehana hoʻoponopono genome e hana i nā mea kanu pale wai.